OPEN-SOURCE SCRIPT
Smooths Session Volume Profile
Overview
Smooths Session Volume Profile (SSVP) is built around a single volume-splitting engine that feeds three different views of the same underlying data: a per-bar footprint table, a compact mobile dashboard, and a session-scaled Volume Profile with Point of Control, Value Area, and Imbalance detection. Every number shown anywhere in the script traces back to one buy/sell volume calculation performed once per bar.
Why these are one script, not a mashup
The footprint table and the Volume Profile are not two indicators placed side by side — they are two resolutions of the identical volume model. The table shows that model at full per-bar detail over a short recent window; the profile aggregates the exact same bar-level buy/sell split over whichever session(s) the user selects. The session tools (highlight boxes, session-based profile scaling, Naked POC) extend that one model with time-of-day awareness rather than adding a separate feature. Removing the table would not simplify the script's purpose, it would just remove one lens on the same data the profile already uses.
Concepts used
How to use it
Add it to any chart and timeframe. Use the Volume Profile's POC as a magnet level and its Value Area edges as boundaries between accepted and rejected price. Diagonal imbalances mark price levels where one side of the market overwhelmed the other. Toggle individual sessions in and out of "Include in Profile" to isolate one session's structure or build a composite of several. Switch to the footprint table or the mobile dashboard for the identical volume data at per-bar resolution instead of session-aggregated.
Originality
The per-bar truncated-normal volume model — shared by the footprint table and the Volume Profile alike — is the mechanism this script is built around, not an assembly of standard metrics. Session-aware profile scaling, Naked POC seeded independently per session, and the self-checking Residual metric are not reused from another publication; the detection, modeling, and rendering logic here were written for this script.
Inputs
This indicator has no buy/sell signals, alerts framed as trade calls, or strategy logic — it is a volume-analysis tool. It does include TradingView alertcondition() entries for session starts and Overlap-state changes, which fire on data conditions, not trade recommendations.
Smooths Session Volume Profile (SSVP) is built around a single volume-splitting engine that feeds three different views of the same underlying data: a per-bar footprint table, a compact mobile dashboard, and a session-scaled Volume Profile with Point of Control, Value Area, and Imbalance detection. Every number shown anywhere in the script traces back to one buy/sell volume calculation performed once per bar.
Why these are one script, not a mashup
The footprint table and the Volume Profile are not two indicators placed side by side — they are two resolutions of the identical volume model. The table shows that model at full per-bar detail over a short recent window; the profile aggregates the exact same bar-level buy/sell split over whichever session(s) the user selects. The session tools (highlight boxes, session-based profile scaling, Naked POC) extend that one model with time-of-day awareness rather than adding a separate feature. Removing the table would not simplify the script's purpose, it would just remove one lens on the same data the profile already uses.
Concepts used
- Selectable volume engine: Geometric splits each bar's volume by where it closed inside its own high-low range. Intrabar reads real up/down volume from a lower timeframe via TradingView's own ta library. Footprint reads TradingView's native per-tick request.footprint() data (Premium/Ultimate plans only). Every other calculation in the script consumes whichever engine is active, unchanged.
- Per-bar truncated-normal volume split: rather than splitting a bar's volume evenly across the ticks it traded, the script models the buy side and the sell side as separate truncated normal distributions inside the bar's own high-low range, centered toward where the bar actually closed. This produces a continuous, weighted density instead of a flat histogram bar.
- Volume Profile as a summed density: the same per-bar truncated-normal components are summed across every included bar into one continuous curve, which is then sampled to locate the Point of Control (the price of maximum combined density), the Value Area (the narrowest band containing a chosen percentage of the modeled volume), and diagonal volume imbalances between adjacent price levels.
- Session-aware scaling: Asia, London, and New York are each tracked independently — the script knows whether a session is currently forming or was last completed, and the profile can be built from the live union of whichever sessions are toggled on, instead of a fixed bar count.
- Naked POC: the instant a session's occurrence closes, that session's own standalone Point of Control is computed independently of the combined profile and kept on the chart as an untested level until price actually trades back through it.
- Self-checking math: the Overlap reading (OVL) measures what share of buy and sell volume occurred at the same prices, from 0 (fully separated, directional) to 1 (fully overlapping, balanced/rotational). The Residual reading (RES) independently re-integrates the density model and compares it back to the real volume it's supposed to represent, in parts-per-million, so the script can flag its own modeling error rather than silently drawing a profile that doesn't add up.
How to use it
Add it to any chart and timeframe. Use the Volume Profile's POC as a magnet level and its Value Area edges as boundaries between accepted and rejected price. Diagonal imbalances mark price levels where one side of the market overwhelmed the other. Toggle individual sessions in and out of "Include in Profile" to isolate one session's structure or build a composite of several. Switch to the footprint table or the mobile dashboard for the identical volume data at per-bar resolution instead of session-aggregated.
Originality
The per-bar truncated-normal volume model — shared by the footprint table and the Volume Profile alike — is the mechanism this script is built around, not an assembly of standard metrics. Session-aware profile scaling, Naked POC seeded independently per session, and the self-checking Residual metric are not reused from another publication; the detection, modeling, and rendering logic here were written for this script.
Inputs
- Volume Profile — Profile Period/Session Scaling mode, Style (Line/Columns/Histogram), Width/Resolution, Gap From Chart, bell colors and fill
- Session Profile Scaling — per-session time windows, time zone, Include in Profile and Show Highlight toggles, highlight colors
- Metrics — Point of Control, Value Area, Imbalance thresholds, Naked POC, Balance Tilt, Residual Tolerance
- Data Engine — volume engine selection and its parameters
- Table Display — footprint table and mobile dashboard appearance
This indicator has no buy/sell signals, alerts framed as trade calls, or strategy logic — it is a volume-analysis tool. It does include TradingView alertcondition() entries for session starts and Overlap-state changes, which fire on data conditions, not trade recommendations.
开源脚本
秉承TradingView的精神，该脚本的作者将其开源，以便交易者可以查看和验证其功能。向作者致敬！您可以免费使用该脚本，但请记住，重新发布代码须遵守我们的网站规则。
免责声明
这些信息和出版物并非旨在提供，也不构成TradingView提供或认可的任何形式的财务、投资、交易或其他类型的建议或推荐。请阅读使用条款了解更多信息。
开源脚本
秉承TradingView的精神，该脚本的作者将其开源，以便交易者可以查看和验证其功能。向作者致敬！您可以免费使用该脚本，但请记住，重新发布代码须遵守我们的网站规则。
免责声明
这些信息和出版物并非旨在提供，也不构成TradingView提供或认可的任何形式的财务、投资、交易或其他类型的建议或推荐。请阅读使用条款了解更多信息。